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Getting Started
1.4 Detailed Features
The Vigor2200USB provides many built-in server and software fea-
tures to provide a convenient comprehensive solution for your SOHO
network.
1. Network Address Translation (NAT): NAT allows multiple
SOHO users to concurrently connect to an Internet Service Pro-
vider (ISP) using a single Internet access account.
2. Firmware Upgrade (TFTP) Server: Using this server and the
Firmware Upgrade Utility software, you may easily upgrade to
the latest firmware whenever enhanced features are added.
3. Web (HTTP) Server: A Web browser is the most common
tool used to surf the Internet. You may use Microsoft's Internet
Explorer or a Netscape browser etc, to configure the router as
easily as surfing a website.
4. Domain Name Server (DNS) Proxy: The DNS proxy main-
tains a DNS cache, including a mapping table of domain names and
IP addresses. The proxy also remembers DNS query packets sent
through the router and saves them into its own DNS cache. For
enhanced speed, when a DNS query packet enters the
Vigor2200USB, the proxy searches its local DNS cache. If match-
ed, the Vigor2200USB sends an answer to the host that sent the
DNS query packet. Only umatched DNS queries require querying
a WAN Domain Name Server.
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